ABB SDCS-FEX-2 3ADT306311P2103 Field Exciter Board

The SDCS-FEX-2 is a specialized Field Exciter Board designed for use within ABB’s DCS (Direct Current Drive System) converters, particularly the DCS 500 and DCS 600 series. It plays a critical role in controlling the field current of DC motors, acting as an interface between the main control unit and the field circuit to ensure precise regulation and reliable motor operation.

Key Technical Specifications

• Field Voltage Range: Up to 500 V DC

• Field Current Range: Up to 40 A (varies with configuration and cooling)

• Input Supply Voltage: Typically provided by internal control electronics

• Control Interface: Interfaces with SDCS-CON and SDCS-POW boards for communication and control

• Signal Processing: Supports both analog and digital signal handling for accurate field current regulation

• Cooling: Air-cooled within the converter cabinet

• Protection Features:

• Overcurrent protection

• Field loss detection

• Temperature monitoring (if applicable)

Physical Characteristics

• Board Format: Plug-in printed circuit board (PCB) module

• Mounting: Installed in a designated slot inside ABB DCS converters

• Dimensions: Approximately 300 mm × 200 mm (standard ABB DCS board size)

• Weight: Between 0.5 kg and 1.0 kg

Features & Benefits

• Precise Field Control: Ensures stable and efficient DC motor operation

• Reliable Performance: Tested for durability in demanding industrial environments

• Modular Design: Facilitates easy replacement and maintenance

• Broad Compatibility: Compatible with multiple ABB DCS converter models, including DCS 500 and DCS 600 series